Features: Pack drain covers with automatic drainage and durability, featuring thickened copper construction for superior rust and resistance. Engineered with auto open/close mechanism and secure sealing , these 20 26mm compatible covers leaks, odors, and while requiring tools for quick installation. Ideal for homeowners, renovators, and property managers seeking , low maintenance for bathroom and kitchen sinks prone to accidental overflows. Effortlessly safeguards bathrooms, kitchens, and laundry areas from water damage by instantly draining excess water, even during unattended faucet use or sudden pipe blockages. Muziping's patented design combines sleek aesthetics with heavy duty functionality, offering 99% basin compatibility and a polished finish to decor. Specifications: Product name: Full copper thickened basin decorative cover : Copper Size: 30mm Adaptation: Adapt to basin port with a diameter of 20-26mm Package Includes: 3 set of rings note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.